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EXCEPTIONAL QUALITY COPPER NUGGETSFound on private property on the Keweenaw Peninsula in the Lake Superior Copper District.This lot has total of 18 pieces of all sizes totaling 327 grams (.7209 lbs.) of RARE Glacier and River Tumbled native copper nuggets all showing classic matrix of host rock. (Very Important!)Excellent for Geology classes and serious collector specimens. Some of these pieces have a solid host rock matrix; Quartz,Epidote, Black Shale, Calcite/Datolite.Datolite is hard, glassy calcium mineral of boron. Pure Datolite is bone white. However, when it mixes with copper, it can turn bright green-yellow. These yellow nodules and crystals are found in basalt rocks.
The largest piece is 215 Grams with 50% of the backside covered in typical black shale layer. Also one of the medium pieces is extra smooth and perfect for a healing-copper pendent!
These nuggets were found in a flood-creek just off Hwy 41 near Hancock, Mi.
Good Luck offerding!
